Rainbow Electronics ATmega3290P_V - Manual (Page 337)

337
ATmega329/3290/649/6490
2552H–AVR–11/06
Pin Thresholds and hysteresis Figure 174. I/O Pin Input Threshold Voltage vs. V
CC
(V
IH
, I/O Pin Read as “1”)
Figure 175. I/O Pin Input Threshold Voltage vs. V
CC
(V
IL
, I/O Pin Read as “0”)
I/O PIN INPUT THRESHOLD VOLTAGE vs. V
CC
VIH, I/O PIN READ AS '1'
0
0.5
1
1.5
2
2.5
3
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
T
h
re
s
hol
d (
V
)
85 °C
25 °C
-40 °C
I/O PIN INPUT THRESHOLD VOLTAGE vs. V
CC
VIL, I/O PIN READ AS '0'
0
0.5
1
1.5
2
2.5
3
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
T
h
re
s
hol
d (
V
)
85 °C
25 °C
-40 °C